In eastern Africa, they mostly hunt Thomson's gazelles, but they will also attack calves, warthogs, zebras, impalas, and the young of large antelopes such as the gnu.

Every February, give or take a couple of weeks, more than a million wildebeest, or gnus, gather in the south-eastern quadrant of their quasi-circular migration route.

With his travelling companions he stood on a hill looking down on the savannah stretching to the far horizon, gigantic herds of gazelle, antelope, gnu, zebra, and warthog grazing and moving forwards like slow rivers.